Finding the Fourth Proportional to 105,462.88, 145,524.72 and 60,742.24

Step by Step Solution

1. Step 1: Write the proportion equation
   105,462.88 : 145,524.72 = 60,742.24 : x
2. Step 2: Convert to fraction form
   105,462.88/145,524.72 = 60,742.24/x
3. Step 3: Cross multiply
   105,462.88x = 145,524.72 × 60,742.24
4. Step 4: Simplify right side
   105,462.88x = 8,839,497,468.17
5. Step 5: Solve for x
   x = 8,839,497,468.17/105,462.88
6. Step 6: Final answer
   x = 83,816.20